diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index e4e94bd..b0c3e87 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -107,6 +107,7 @@ type PrizeInfo = {
   left_num?: number
   status?: number
   percent?: string
+  is_show_num?: number
   img?: string
 }
 
@@ -208,9 +209,77 @@ function priceOf(row?: PrizeInfo): number {
   return row.new_score || row.score || 0
 }
 
-function leftOf(row?: PrizeInfo): number {
-  if (!row) return 0
-  return row.left_num || 0
+type InventoryInfo = {
+  left?: number
+  total?: number
+  percent?: string
+  estimated: boolean
+}
+
+function inventoryOf(row?: PrizeInfo): InventoryInfo {
+  if (!row) return { estimated: false }
+  const total = Number(row.num || 0)
+  const percent = normalizePercent(row.percent)
+  const rawLeft = Number(row.left_num || 0)
+  if (rawLeft > 0 || percent === '0%') {
+    return {
+      left: rawLeft,
+      total: total > 0 ? total : undefined,
+      percent,
+      estimated: false,
+    }
+  }
+  if (total > 0 && percent) {
+    const percentValue = Number(percent.replace('%', ''))
+    if (Number.isFinite(percentValue)) {
+      return {
+        left: Math.floor((total * percentValue) / 100),
+        total,
+        percent,
+        estimated: true,
+      }
+    }
+  }
+  return {
+    total: total > 0 ? total : undefined,
+    percent,
+    estimated: false,
+  }
+}
+
+function normalizePercent(value?: string): string | undefined {
+  const text = String(value || '').trim()
+  if (!text) return undefined
+  const numeric = Number(text.replace('%', ''))
+  if (!Number.isFinite(numeric)) return text
+  return `${numeric}%`
+}
+
+function inventoryText(row?: PrizeInfo): string {
+  const info = inventoryOf(row)
+  const left = info.left === undefined ? '-' : `${info.estimated ? '约 ' : ''}${info.left}`
+  const total = info.total === undefined ? '-' : String(info.total)
+  return `剩余 ${left} / 总量 ${total}${info.percent ? ` · ${info.percent}` : ''}`
+}
+
+function summarizeInventory(items: PrizeInfo[]): string {
+  let left = 0
+  let total = 0
+  let leftKnown = 0
+  let totalKnown = 0
+  items.forEach((item) => {
+    const info = inventoryOf(item)
+    if (info.left !== undefined) {
+      left += info.left
+      leftKnown += 1
+    }
+    if (info.total !== undefined) {
+      total += info.total
+      totalKnown += 1
+    }
+  })
+  if (leftKnown === 0 && totalKnown === 0) return '库存未公开'
+  return `剩余 ${leftKnown ? left : '-'} / 总量 ${totalKnown ? total : '-'}`
 }
 
 function statusTag(status?: number, error?: string): ReactNode {
@@ -550,6 +619,7 @@ export default function Dashboard() {
         String(priceOf(item)).includes(keyword),
     )
   }, [prizes, productSearch])
+  const inventorySummary = useMemo(() => summarizeInventory(filteredPrizes), [filteredPrizes])
 
   const config = () => ({
     ...pickConfig(form.getFieldsValue(true)),
@@ -911,10 +981,9 @@ export default function Dashboard() {
 
   const prizeColumns: ColumnsType<PrizeInfo> = useMemo(
     () => [
-      { title: 'num', dataIndex: 'id', width: 92 },
-      { title: 'name', dataIndex: 'name', minWidth: 220, ellipsis: true },
-      { title: '剩余', width: 84, render: (_, row) => leftOf(row) || '-' },
-      { title: '总量', dataIndex: 'num', width: 84 },
+      { title: 'PID', dataIndex: 'id', width: 92 },
+      { title: '名称', dataIndex: 'name', minWidth: 220, ellipsis: true },
+      { title: '库存', minWidth: 190, render: (_, row) => inventoryText(row) },
       { title: '价格', width: 84, render: (_, row) => priceOf(row) || '-' },
     ],
     [],
@@ -1065,6 +1134,7 @@ export default function Dashboard() {
 
           <div className="inventory-line">
             <span>商品缓存 {filteredPrizes.length} 个</span>
+            <span>{inventorySummary}</span>
             <span>{productListUpdatedAt ? `更新 ${productListUpdatedAt}` : '未缓存'}</span>
           </div>
 
@@ -1091,9 +1161,9 @@ export default function Dashboard() {
                   </div>
                   <div className="product-meta">
                     <strong>{item.name}</strong>
-                    <div>
+                    <div className="product-tags">
                       <Tag color="gold">{priceOf(item)} 积分</Tag>
-                      <Tag color="green">库存 {leftOf(item) || '-'}</Tag>
+                      <InventoryTags prize={item} compact />
                     </div>
                   </div>
                 </button>
@@ -1425,18 +1495,31 @@ export default function Dashboard() {
   )
 }
 
+function InventoryTags({ prize, compact = false }: { prize?: PrizeInfo; compact?: boolean }) {
+  const info = inventoryOf(prize)
+  const left = info.left === undefined ? '-' : `${info.estimated ? '约 ' : ''}${info.left}`
+  const total = info.total === undefined ? '-' : String(info.total)
+  return (
+    <span className={`inventory-tags${compact ? ' compact' : ''}`}>
+      <Tag color={info.left === 0 ? 'red' : 'green'}>剩余 {left}</Tag>
+      <Tag>总量 {total}</Tag>
+      {info.percent ? <Tag color="blue">{info.percent}</Tag> : null}
+    </span>
+  )
+}
+
 function CurrentProduct({ prize }: { prize?: PrizeInfo }) {
   const name = prize?.name || '未从 CK 列表选择'
   return (
     <div className="current-product">
       <span>当前商品</span>
       <strong>{name}</strong>
-      <div>
+      <div className="current-product-tags">
         {prize ? (
           <>
             <Tag color="gold">{priceOf(prize)} 积分</Tag>
-            <Tag color="green">库存 {leftOf(prize) || '-'}</Tag>
             <Tag>PID {prize.id}</Tag>
+            <InventoryTags prize={prize} />
           </>
         ) : (
           <Tag>CK 商品源</Tag>
diff --git a/frontend/src/styles.css b/frontend/src/styles.css
index 30349dd..6bcaad2 100644
--- a/frontend/src/styles.css
+++ b/frontend/src/styles.css
@@ -73,8 +73,32 @@ body {
   font-size: 16px;
 }
 
+.current-product-tags,
+.product-tags,
+.inventory-tags {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 6px;
+}
+
+.inventory-tags {
+  display: inline-flex;
+}
+
+.inventory-tags.compact {
+  gap: 4px;
+}
+
+.inventory-tags .ant-tag,
+.product-tags .ant-tag,
+.current-product-tags .ant-tag {
+  margin-inline-end: 0;
+}
+
 .inventory-line {
   display: flex;
+  flex-wrap: wrap;
   align-items: center;
   justify-content: space-between;
   gap: 8px;
diff --git a/internal/gui/app.go b/internal/gui/app.go
index 2e80f75..2ccc2c9 100644
--- a/internal/gui/app.go
+++ b/internal/gui/app.go
@@ -7,6 +7,7 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	"github.com/wailsapp/wails/v2/pkg/runtime"
@@ -20,6 +21,7 @@ const (
 	eventMonitorResult = "gui:monitor-result"
 	eventMonitorState  = "gui:monitor-state"
 	maxLogEntries      = 500
+	logQueueSize       = 2048
 )
 
 type App struct {
@@ -28,6 +30,12 @@ type App struct {
 	logMu sync.Mutex
 	logs  []LogEntry
 
+	logCh         chan LogEntry
+	logStop       chan struct{}
+	logWorkerOnce sync.Once
+	logStopOnce   sync.Once
+	droppedLogs   atomic.Int64
+
 	runMu          sync.Mutex
 	monitorCancel  context.CancelFunc
 	monitorRunning bool
@@ -111,16 +119,21 @@ type cookieLine struct {
 }
 
 func NewApp() *App {
-	return &App{}
+	return &App{
+		logCh:   make(chan LogEntry, logQueueSize),
+		logStop: make(chan struct{}),
+	}
 }
 
 func (a *App) Startup(ctx context.Context) {
 	a.ctx = ctx
+	a.startLogWorker()
 	a.addLog("info", "GUI 已启动")
 }
 
 func (a *App) Shutdown(ctx context.Context) {
 	a.StopMonitor()
+	a.stopLogWorker()
 }
 
 func (a *App) DefaultConfig() Config {
@@ -192,7 +205,8 @@ func (a *App) ListPrizes(cfg Config) (PrizeListResult, error) {
 		a.addLog("error", "查询奖品失败: %v", err)
 		return PrizeListResult{}, err
 	}
-	a.addLog("info", "查询奖品完成: uid=%d sid=%d count=%d", accounts[0].UID, cfg.SID, len(resp.Prizes))
+	left, total, leftKnown, totalKnown := prizeInventorySummary(resp.Prizes)
+	a.addLog("info", "查询商品完成: uid=%d sid=%d status=%d count=%d 剩余=%d/%d项 总量=%d/%d项 msg=%s", accounts[0].UID, cfg.SID, resp.Status, len(resp.Prizes), left, leftKnown, total, totalKnown, resp.Msg)
 	return PrizeListResult{
 		UID:    accounts[0].UID,
 		Status: resp.Status,
@@ -423,6 +437,77 @@ func (a *App) addLog(level, format string, args ...any) {
 		Level:   level,
 		Message: fmt.Sprintf(format, args...),
 	}
+	if a.logCh == nil {
+		a.writeLogEntry(entry)
+		return
+	}
+	select {
+	case a.logCh <- entry:
+	default:
+		a.droppedLogs.Add(1)
+	}
+}
+
+func (a *App) startLogWorker() {
+	if a.logCh == nil {
+		a.logCh = make(chan LogEntry, logQueueSize)
+	}
+	if a.logStop == nil {
+		a.logStop = make(chan struct{})
+	}
+	a.logWorkerOnce.Do(func() {
+		go a.logWorker()
+	})
+}
+
+func (a *App) stopLogWorker() {
+	if a.logStop == nil {
+		return
+	}
+	a.logStopOnce.Do(func() {
+		close(a.logStop)
+	})
+}
+
+func (a *App) logWorker() {
+	for {
+		select {
+		case entry := <-a.logCh:
+			a.flushDroppedLogs()
+			a.writeLogEntry(entry)
+		case <-a.logStop:
+			a.drainLogQueue()
+			a.flushDroppedLogs()
+			return
+		}
+	}
+}
+
+func (a *App) drainLogQueue() {
+	for {
+		select {
+		case entry := <-a.logCh:
+			a.flushDroppedLogs()
+			a.writeLogEntry(entry)
+		default:
+			return
+		}
+	}
+}
+
+func (a *App) flushDroppedLogs() {
+	dropped := a.droppedLogs.Swap(0)
+	if dropped <= 0 {
+		return
+	}
+	a.writeLogEntry(LogEntry{
+		Time:    time.Now().Format("15:04:05.000"),
+		Level:   "warn",
+		Message: fmt.Sprintf("日志队列繁忙，已异步丢弃 %d 条日志", dropped),
+	})
+}
+
+func (a *App) writeLogEntry(entry LogEntry) {
 	a.logMu.Lock()
 	a.logs = append(a.logs, entry)
 	if len(a.logs) > maxLogEntries {
@@ -643,3 +728,17 @@ func errorString(err error) string {
 	}
 	return err.Error()
 }
+
+func prizeInventorySummary(prizes []huya.PrizeInfo) (left, total int64, leftKnown, totalKnown int) {
+	for _, prize := range prizes {
+		if prize.Num > 0 {
+			total += prize.Num
+			totalKnown++
+		}
+		if itemLeft, ok := prize.InventoryLeft(); ok {
+			left += itemLeft
+			leftKnown++
+		}
+	}
+	return left, total, leftKnown, totalKnown
+}
diff --git a/internal/gui/app_test.go b/internal/gui/app_test.go
index 89ca758..757c878 100644
--- a/internal/gui/app_test.go
+++ b/internal/gui/app_test.go
@@ -77,3 +77,24 @@ func TestParseStartTimeAcceptsClockOnly(t *testing.T) {
 		}
 	})
 }
+
+func TestAddLogDoesNotBlockWhenQueueIsFull(t *testing.T) {
+	app := &App{
+		logCh:   make(chan LogEntry),
+		logStop: make(chan struct{}),
+	}
+	done := make(chan struct{})
+	go func() {
+		app.addLog("debug", "test")
+		close(done)
+	}()
+
+	select {
+	case <-done:
+	case <-time.After(100 * time.Millisecond):
+		t.Fatal("addLog blocked when log queue was full")
+	}
+	if dropped := app.droppedLogs.Load(); dropped != 1 {
+		t.Fatalf("droppedLogs = %d, want 1", dropped)
+	}
+}
diff --git a/internal/huya/activity.go b/internal/huya/activity.go
index f031433..1e2ae3a 100644
--- a/internal/huya/activity.go
+++ b/internal/huya/activity.go
@@ -261,18 +261,26 @@ func (p PrizeInfo) Price() int64 {
 }
 
 func (p PrizeInfo) EstimatedLeft() int64 {
+	left, ok := p.InventoryLeft()
+	if ok {
+		return left
+	}
+	return 0
+}
+
+func (p PrizeInfo) InventoryLeft() (int64, bool) {
 	if p.LeftNum > 0 {
-		return p.LeftNum
+		return p.LeftNum, true
 	}
 	text := strings.TrimSuffix(strings.TrimSpace(p.Percent), "%")
 	if text == "" || p.Num <= 0 {
-		return 0
+		return 0, false
 	}
 	percent, err := strconv.ParseFloat(text, 64)
 	if err != nil {
-		return 0
+		return 0, false
 	}
-	return int64(math.Floor(float64(p.Num)*percent/100.0 + 1e-9))
+	return int64(math.Floor(float64(p.Num)*percent/100.0 + 1e-9)), true
 }
 
 type PrizeTag struct {
@@ -579,3 +587,35 @@ func (r *ScoreExchangePrizeResp) ReadFrom(rd *taf.Reader) error {
 func (r ScoreExchangePrizeResp) Success() bool {
 	return r.Status == 200 && (r.Msg == "" || strings.Contains(r.Msg, "成功"))
 }
+
+func prizeListInventorySummary(prizes []PrizeInfo) (left, total int64, leftKnown, totalKnown int) {
+	for _, prize := range prizes {
+		if prize.Num > 0 {
+			total += prize.Num
+			totalKnown++
+		}
+		if itemLeft, ok := prize.InventoryLeft(); ok {
+			left += itemLeft
+			leftKnown++
+		}
+	}
+	return left, total, leftKnown, totalKnown
+}
+
+func exchangeResponseMessage(resp *ScoreExchangePrizeResp) string {
+	if resp == nil {
+		return ""
+	}
+	for _, text := range []string{
+		resp.Msg,
+		resp.ActPreCondition.Tip,
+		resp.ActPreCondition.ButtonDesc,
+		resp.ExchangeInfo.Desc,
+		resp.OrderID,
+	} {
+		if strings.TrimSpace(text) != "" {
+			return strings.TrimSpace(text)
+		}
+	}
+	return ""
+}
diff --git a/internal/huya/http_client.go b/internal/huya/http_client.go
index e20bdfb..45dc25a 100644
--- a/internal/huya/http_client.go
+++ b/internal/huya/http_client.go
@@ -92,7 +92,7 @@ func (c *HTTPClient) CallRPC(ctx context.Context, service, method string, reqStr
 		httpReq = httpReq.WithContext(ctx)
 	}
 
-	c.logf("[HTTP] POST %s.%s body=%dB", service, method, len(body))
+	c.logf("[HTTP] 请求 %s.%s", service, method)
 	httpResp, err := client.Do(httpReq)
 	if err != nil {
 		return nil, err
@@ -141,6 +141,9 @@ func (c *HTTPClient) QueryUserScore(ctx context.Context, uid int64, cookie strin
 	req := &GetUserScoreReq{User: c.buildUser(uid, cookie, ActivityWebUA), SID: sid}
 	var resp GetUserScoreResp
 	_, err := c.CallRPC(ctx, ServantWebActUI, FuncGetUserScore, req, &resp, CallOptions{UID: uid, Cookie: cookie, RequestID: 2})
+	if err == nil {
+		c.logf("[HTTP] 积分已解码 uid=%d sid=%d status=%d 可用=%d msg=%s", uid, sid, resp.Status, resp.AvailableScore(), resp.Msg)
+	}
 	return &resp, err
 }
 
@@ -148,6 +151,10 @@ func (c *HTTPClient) GetActPrizeList(ctx context.Context, uid int64, cookie stri
 	req := &GetActPrizeListReq{User: c.buildUser(uid, cookie, ActivityWebUA), SID: sid}
 	var resp GetActPrizeListResp
 	_, err := c.CallRPC(ctx, ServantWebActUI, FuncPrizeList, req, &resp, CallOptions{UID: uid, Cookie: cookie, RequestID: 1})
+	if err == nil {
+		left, total, leftKnown, totalKnown := prizeListInventorySummary(resp.Prizes)
+		c.logf("[HTTP] 商品列表已解码 uid=%d sid=%d status=%d count=%d 剩余=%d/%d项 总量=%d/%d项 msg=%s", uid, sid, resp.Status, len(resp.Prizes), left, leftKnown, total, totalKnown, resp.Msg)
+	}
 	return &resp, err
 }
 
@@ -157,6 +164,9 @@ func (c *HTTPClient) GetUserPrizeRecords(ctx context.Context, uid int64, cookie
 	req := &GetUserPrizeRecordsReq{User: user, SID: sid}
 	var resp GetUserPrizeRecordsResp
 	_, err := c.CallRPC(ctx, ServantWebActUI, FuncPrizeRecords, req, &resp, CallOptions{UID: uid, Cookie: cookie, RequestID: 6})
+	if err == nil {
+		c.logf("[HTTP] 兑换记录已解码 uid=%d sid=%d status=%d count=%d msg=%s", uid, sid, resp.Status, len(resp.Records), resp.Msg)
+	}
 	return &resp, err
 }
 
@@ -170,5 +180,8 @@ func (c *HTTPClient) ScoreExchangePrize(ctx context.Context, uid int64, cookie s
 	}
 	var resp ScoreExchangePrizeResp
 	_, err := c.CallRPC(ctx, ServantWebActUI, FuncExchangePrize, req, &resp, CallOptions{UID: uid, Cookie: cookie, RequestID: 1})
+	if err == nil {
+		c.logf("[HTTP] 兑换结果已解码 uid=%d sid=%d pid=%d status=%d order=%s msg=%s", uid, sid, pid, resp.Status, resp.OrderID, exchangeResponseMessage(&resp))
+	}
 	return &resp, err
 }
diff --git a/internal/huya/wss_client.go b/internal/huya/wss_client.go
index 55b771d..66d4b8f 100644
--- a/internal/huya/wss_client.go
+++ b/internal/huya/wss_client.go
@@ -238,7 +238,7 @@ func (s *WSSSession) readLoop() {
 		case WSSCmdHeartBeatAck, WSSCmdHeartBeatRsp:
 			// 心跳响应无需处理。
 		case WSSCmdRegisterGroupRsp, WSSCmdVerifyCookieRsp, WSSCmdUpdateUserInfoRsp, WSSCmdUpdateUserExpsRsp:
-			s.client.logf("[WSS] 收到控制响应 cmd=%d data=%dB", cmd.CmdType, len(cmd.Data))
+			// 控制类响应频率高且没有业务字段，避免刷屏。
 		default:
 			s.client.logf("[WSS] 收到 cmd=%d data=%dB requestID=%d", cmd.CmdType, len(cmd.Data), cmd.RequestID)
 		}
@@ -456,7 +456,7 @@ func (s *WSSSession) callWUPWithRequestIDAndTrace(ctx context.Context, service,
 	s.pendingMu.Lock()
 	s.pending[requestID] = ch
 	s.pendingMu.Unlock()
-	s.client.logf("[WSS] WUP %s.%s requestID=%d body=%dB", service, method, requestID, len(data))
+	s.client.logf("[WSS] 请求 %s.%s requestID=%d", service, method, requestID)
 	if err := s.writePayload(ctx, payload); err != nil {
 		s.removePending(requestID)
 		return nil, err
@@ -509,6 +509,9 @@ func (c *WSSClient) QueryUserScore(ctx context.Context, uid int64, cookie string
 	req := &GetUserScoreReq{User: c.buildUser(uid, cookie), SID: sid}
 	var resp GetUserScoreResp
 	_, err = session.callRPC(ctx, ServantWebActUI, FuncGetUserScore, req, &resp)
+	if err == nil {
+		c.logf("[WSS] 积分已解码 uid=%d sid=%d status=%d 可用=%d msg=%s", uid, sid, resp.Status, resp.AvailableScore(), resp.Msg)
+	}
 	return &resp, err
 }
 
@@ -520,6 +523,10 @@ func (c *WSSClient) GetActPrizeList(ctx context.Context, uid int64, cookie strin
 	req := &GetActPrizeListReq{User: c.buildUser(uid, cookie), SID: sid}
 	var resp GetActPrizeListResp
 	_, err = session.callRPC(ctx, ServantWebActUI, FuncPrizeList, req, &resp)
+	if err == nil {
+		left, total, leftKnown, totalKnown := prizeListInventorySummary(resp.Prizes)
+		c.logf("[WSS] 商品列表已解码 uid=%d sid=%d status=%d count=%d 剩余=%d/%d项 总量=%d/%d项 msg=%s", uid, sid, resp.Status, len(resp.Prizes), left, leftKnown, total, totalKnown, resp.Msg)
+	}
 	return &resp, err
 }
 
@@ -531,6 +538,9 @@ func (c *WSSClient) GetUserPrizeRecords(ctx context.Context, uid int64, cookie s
 	req := &GetUserPrizeRecordsReq{User: c.buildUser(uid, cookie), SID: sid}
 	var resp GetUserPrizeRecordsResp
 	_, err = session.callRPC(ctx, ServantWebActUI, FuncPrizeRecords, req, &resp)
+	if err == nil {
+		c.logf("[WSS] 兑换记录已解码 uid=%d sid=%d status=%d count=%d msg=%s", uid, sid, resp.Status, len(resp.Records), resp.Msg)
+	}
 	return &resp, err
 }
 
@@ -548,6 +558,9 @@ func (c *WSSClient) ScoreExchangePrize(ctx context.Context, uid int64, cookie st
 	}
 	var resp ScoreExchangePrizeResp
 	_, err = session.callRPC(ctx, ServantWebActUI, FuncExchangePrize, req, &resp)
+	if err == nil {
+		c.logf("[WSS] 兑换结果已解码 uid=%d sid=%d pid=%d status=%d order=%s msg=%s", uid, sid, pid, resp.Status, resp.OrderID, exchangeResponseMessage(&resp))
+	}
 	return &resp, err
 }